Stabilise potentiometer readings?

Analog read is 0 to 1023. You can use "map" and convert the reading to 0 to 360 degrees. You would get 3 times the less sensitivity or in a way it would seem like the potentiometer was 3 times more accurate because the noise would not show up as much.

If your scaling was 0 - 180 the effect would be even larger.

http://arduino.cc/en/Reference/Map